PTFE Envelope Gasket is made of PTFE wrapping flexible core material by professional equipment. It is mainly used on the sealing gasket of the flange, pagoda groove and all kinds of the machinery equipment. It is also used on highly corrosive liquid, such as strong acid, halogen or no contaminating food stuff, medicine. It has outstanding corrosion resistance and is suitable for majority of chemical material,especially the toxicity, strong acid, strong alkaline and strongly corrosive medium. It is application to chemical, petrochemical, pharmaceutical and food industries (With the exception of molten alkali and high temperature fluoride).

CATEGORIES

V type : V type is the most commonly used and one of most economical gaskets. It is suitable for various applications, with the exception of corrosive fluids and the requirements of thicker embedded material.

Square type:Applicable to the production of thicker embedded materials and corrosive fluids, liquid residual in the inner diameter of the flange can be reduced.

U type:Applicable to toxic chemicals and the production of large diameter gaskets.

SPECIFICATION

Type A andType B

PTFE envelope gasket commonly usedstandard European size system

Nominal Size DN

Inner Diameter of enveloping layer D1

Outer Diameter of enveloping layer D3min

Gasket Outer Diameter D2

Gasket Thickness T

Nominal Pressure PN

6

10

16

25

40

10

18

36

39

46

46

46

46

3

15

22

40

44

51

51

51

51

20

27

50

54

61

61

61

61

25

34

60

64

71

71

71

71

32

43

70

76

82

82

82

82

40

49

80

86

92

92

92

92

50

61

92

96

107

107

107

107

65

77

110

116

127

127

127

127

80

89

126

132

142

142

142

142

100

115

151

152

162

162

168

168

125

141

178

182

192

192

194

194

150

169

206

207

218

218

224

224

200

220

260

262

273

273

284

290

250

273

314

317

328

329

340

352

300

324

365

373

378

384

400

417

350

377

412

423

438

444

457

474

400

426

469

473

489

495

514

546

4

450

480

528

528

539

555

564

571

500

530

578

578

594

617

624

628

Type C

Nominal Size DN

Inner Diameter of enveloping layer D1

Outer Diameter of enveloping layer D3min

Gasket Outer Diameter D2

Gasket Thickness T

Nominal Pressure PN

6

10

16

25

40

350

377

412

423

438

444

457

474

4

400

426

469

473

489

495

514

546

450

480

528

528

539

555

564

571

500

530

578

578

594

617

624

628

600

630

679

679

695

734

731

747

SEPCIFICATION

Type A andType B

PTFE envelope gasket commonly used ASME standard size

Nominal Size

Inner Diameter of enveloping layer D1

Outer Diameter of enveloping layer D3min

Gasket Outer Diameter D4

Gasket Thickness T

DN

NPS

Nominal Pressure Class

150

300

15

1/2

22

40

46.5

52.5

3

20

3/4

27

50

56.0

66.5

25

1

34

60

65.5

73.0

32

11/4

43

70

75.0

82.5

40

11/2

49

80

84.5

94.5

50

2

61

92

104.5

111.0

65

21/2

77

110

123.5

123.0

80

3

89

126

136.5

148.5

100

4

115

151

174.5

180.0

125

5

141

178

196.0

215.0

150

6

169

206

221.5

250.0

200

8

220

260

278.5

306.0

250

10

273

314

338.0

360.5

300

12

324

365

408.0

421.0

350

14

356

412

449.5

484.5

4

400

16

407

469

513.0

538.5

450

18

458

528

548.0

595.5

500

20

508

578

605.0

653.0

Type C

Nominal Size

Inner Diameter of enveloping layer D1

Outer Diameter of enveloping layer D3min

Gasket Outer Diameter D4

Gasket Thickness T

DN

NPS

Nominal Pressure Class

150

300

350

14

356

412

449.5

484.5

4

400

16

407

469

513.0

538.5

450

18

458

528

548.0

595.5

500

20

508

578

605.0

653.0

600

24

610

679

716.5

774

ABOUT OUR SERVICE

1)Your inquiry will be replied within 2 hours during working time,Within 24 hours when rest time.

2)Our working time is 7.30 AM --17:30 PM,Monday to Saturday.

3)General samples time can be arranged within 2--5days.

4)Orders will be produced exactly as request and approved samples.

5)When mass production,we send photos to show the production line.And confirm the estimate time again.

6)At the end of mass production,photos and samples will send to you for approval.You can arrange the inspection.

7)Before shipping,our QC will have inspection to make sure the quality.

8)We always try best to ensure every order to delivery in time.

Payment Terms

1)T/T,Cash,L/C.

2)30% deposit,70% balance before shipping.

3)Lead time: 15 days after received deposited for 2tons.

4)Delivery way: By sea,By air, By EMS,DHL,UPS,TNT,Fedex.

Packing & Delivery

For sample: By EMS,DHL,UPS,TNT,Fedex

around 5--7 working days to arrive

For Bulk order:

1.Qty of 2tons,within 15 days.

2.Via Sea

3.Delivery time:we will finish production in 15 days for 2 tons.

4.For 20 GP,may nee around 30 days.

ABOUT OUR COMPANY

Zhenjiang Chunhuan Sealing Materials Co., Ltd (Group) is one of the fluoroplastics processing enterprises taking the lead in passing the IS09001 quality system certification. And with the strength of PTFE Products, which are superior quality with FDA,REACH,RoHS,MSDS certificate.

Looking for ideal Flange Sealing Gasket Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Flange PTFE Gasket are quality guaranteed. We are China Origin Factory of PTFE Gasket Scientific. If you have any question, please feel free to contact us.